854605 has 4 divisors (see below), whose sum is σ = 1025532. Its totient is φ = 683680.

The previous prime is 854599. The next prime is 854617. The reversal of 854605 is 506458.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506458 = 2 ⋅253229.

It can be written as a sum of positive squares in 2 ways, for example, as 407044 + 447561 = 638^2 + 669^2 .

It is not a de Polignac number, because 854605 - 2⁹ = 854093 is a prime.

It is an Ulam number.

It is a Duffinian number.

854605 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85456 + ... + 85465.

It is an arithmetic number, because the mean of its divisors is an integer number (256383).

2⁸⁵⁴⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

854605 is a deficient number, since it is larger than the sum of its proper divisors (170927).

854605 is a wasteful number, since it uses less digits than its factorization.

854605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170926.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 854605 is about 924.4484842326. The cubic root of 854605 is about 94.8975812202.

The spelling of 854605 in words is "eight hundred fifty-four thousand, six hundred five".